Pivot Bearing Mount Block for Multi-Axis Door Alignment
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Solution Overview
Problem
Existing hardware for large, heavy mounted structures like ballistic doors cannot withstand the pressure and allow for adjustments, especially after installation, due to misalignment or substructure variations, making adjustments time-consuming, labor-intensive, and expensive.
Innovation Solution
An adjustable mounting system comprising a pivot nut, a floor mount with a slot for sliding engagement, and a cover that moves with the pivot nut, allowing for multi-axis adjustments (x, y, z, and rotational) without disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing hardware is used for ballistic doors, then the door can be installed, but it cannot withstand the pressure (800-1000 psi) and cannot be adjusted for misalignment or substructure variations
Solution Approach 1:
The hinge assembly incorporates adjustable components including a positionable mounting block with slots that allow the hinge to be repositioned along the door edge, and an adjustable arm that can be repositioned to accommodate different door thicknesses and alignments. This dynamic adjustability enables the hardware to adapt to misalignment and substructure variations while maintaining structural integrity under high pressure.
Solution Approach 2:
The hinge assembly serves multiple functions: it provides structural support to withstand 800-1000 psi pressure, enables adjustment for misalignment through slotted mounting blocks, accommodates varying door thicknesses via adjustable arms, and allows repositioning along the door edge. This multi-functionality resolves the contradiction by integrating both strength and adaptability into a single hardware system.
2Ease of operation
If adjustments are made to ballistic doors using traditional methods, then alignment can be corrected, but the process requires disassembly and removal of the door, making it time-consuming and labor-intensive
Solution Approach 1:
The adjustable arm and slotted mounting block design allows the hinge to be repositioned and realigned without removing the door from the building structure. The components can be adjusted in place, significantly reducing the time and labor required compared to traditional disassembly methods.
Solution Approach 2:
The hinge assembly is divided into separate adjustable components including the mounting block, arm, and connection elements. This segmentation allows individual components to be adjusted independently without disassembling the entire door-hinge assembly, enabling quick alignment corrections while the door remains installed.
3Adaptability or versatility
If existing hardware is used, then installation can be completed, but adjustments after installation are prohibitive due to door weight and handling difficulty
Solution Approach 1:
The adjustable arm with repositionable connections and slotted mounting blocks enables the hinge to be realigned and adjusted after installation without requiring door removal. The design accommodates door thickness variations and allows fine-tuning of door position, making post-installation adjustments feasible despite the door's weight.
Solution Approach 2:
The adjustable arm acts as an intermediary component between the mounting block and door connection, providing a mechanism for adjustment that does not require direct handling of the heavy door. The arm can be repositioned to accommodate alignment needs while the door remains in place, reducing the physical effort required for adjustments.
Data Source
AI summary
An adjustment system comprising: a pivot nut comprising a pivot nut aperture feature configured to accept the lower portion of a pivot bolt; a floor mount having a slot in which the pivot nut is slidingly engaged so as to have, e.g., simultaneous movement including forward-backward, side-to-side and rotational and axial articulation, the floor mount having a floor mount aperture that aligns with the pivot nut aperture; and a cover configured to mount over the floor mount and engage with the pivot nut so as to move with the pivot nut.